In this paper,bendloss characteristics of an optical fibre are investigated in detail,and the results show that the resonator with a smaller ring radius,wider free spectrum range (FSR),higher fineness (f) and quality-...In this paper,bendloss characteristics of an optical fibre are investigated in detail,and the results show that the resonator with a smaller ring radius,wider free spectrum range (FSR),higher fineness (f) and quality-factor (Q) can be achieved by using microfibres.Based on the improved fused taper technique,a high-quality microfibre with 5 μ m radius has been fabricated,and an all-fibre micro-ring resonator with a radius of only 500 μ m is realized using self-coiling coupling method.The good-resonant characteristic makes the all-fibre device be expected to avoid bendloss and connection loss associated with planar waveguide integration.展开更多
基金Supported by the National High Technology Research and Development Program of China under Grant No 2007AA01Z258, the National Natural Science Foundation of China under Grant Nos 60807013 and 60837002.
基金Project supported by the National Natural Science Foundation of China(Grant No60607001)the Natural Science Foundation of Beijing,China(Grant No4052023)the Talents of Beijing Jiaotong University,Beijing,China(Grant No2007RC015)
文摘In this paper,bendloss characteristics of an optical fibre are investigated in detail,and the results show that the resonator with a smaller ring radius,wider free spectrum range (FSR),higher fineness (f) and quality-factor (Q) can be achieved by using microfibres.Based on the improved fused taper technique,a high-quality microfibre with 5 μ m radius has been fabricated,and an all-fibre micro-ring resonator with a radius of only 500 μ m is realized using self-coiling coupling method.The good-resonant characteristic makes the all-fibre device be expected to avoid bendloss and connection loss associated with planar waveguide integration.
